Question : Directions: In the following question a series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
19, 28, 39, 52, ?, 84
Option 1: 39
Option 2: 52
Option 3: 67
Option 4: 84
Correct Answer: 67
Solution :
Given:
19, 28, 39, 52, ?, 84
Add consecutive odd numbers to the previous number to obtain the next number.
19 + 9 = 28; 28 + 11 = 39; 39 + 13 = 52; 52 + 15 = 67; 67 + 17 = 84
So, 67 is the missing number in the given series. Hence, the third option is correct.
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